#!/bin/bash

# # 变量的定义
# a=apple
# b="banana"  # 此处双引号可省略
# var="variable is values that can be changed" # 此处双引号不可省略

# echo $a
# echo $b
# echo ${var}

# a=apple
# b="banana"
# c="variable is values taht can be changed"

# echo $a
# echo $b
# echo ${c}

a="apple juice"
b="a's value is $a"

echo $a
echo $b